/**
 * Copyright (C) cedarsoft GmbH.
 *
 * Licensed under the GNU General Public License version 3 (the "License")
 * with Classpath Exception; you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *         http://www.cedarsoft.org/gpl3ce
 *         (GPL 3 with Classpath Exception)
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 3 only, as
 * published by the Free Software Foundation. cedarsoft GmbH designates this
 * particular file as subject to the "Classpath" exception as provided
 * by cedarsoft GmbH in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 3 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 3 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
 * or visit www.cedarsoft.com if you need additional information or
 * have any questions.
 */

package com.exadel.googleregistrator;

import java.util.Date;
import java.util.Random;

public class CredentialGenerator {
    private static long ONE_YEAR_AS_MILLISECONDS = 365l * 24l * 60l * 60l * 1000l;
    private static long TWENTY_YEARS_AS_MILLISECONDS = 20l * ONE_YEAR_AS_MILLISECONDS;
    final String ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()_+-=/{}<>";
    private Random generator;

    public Date generateBirthDate(){
        long randomAge = TWENTY_YEARS_AS_MILLISECONDS +
                (long)(Math.random() * (2 * TWENTY_YEARS_AS_MILLISECONDS));
        Date dob = new Date(System.currentTimeMillis() - randomAge);
        return dob;
    }

    public String generateFirstName(){
        Parser parser = new Parser();
        String firstName = parser.getFirstName();
        try {
            parser.closeDocument();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return firstName;
    }

    public String generateLastName(){
        Parser parser = new Parser();
        String lastName = parser.getLastName();
        try {
            parser.closeDocument();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return lastName;
    }

    public String generateUsername(String firstName, String lastName) {
        return firstName + "." + lastName + (generator.nextInt(899) + 100);
    }

    public String getSex() {
        int sex = generator.nextInt(2);
        if (sex == 0)
            return "male";
        else return "female";
    }

    public String generatePassword() {
        int passwordLength = 8 + generator.nextInt(5);
        String password = "";
        for (int i = 0; i < passwordLength; i++) {
            password += ALPHABET.charAt(generator.nextInt(ALPHABET.length()));
        }
        return password;
    }
}
